EXCELLENT MARANTZ 4240 QUAD STEREO RECEIVER – VINTAGE 4-CHANNEL POWER – 1-YEAR WARRANTY

Condition: Free 1 walnut/black piano color wood case – Excellent – Fully serviced, great working

The Marantz 4240 is a vintage quadraphonic (4-channel) receiver that delivers the rich, analog warmth Marantz is famous for—whether in stereo or quad mode. With 40 watts per channel in stereo and 17WPC x4 in quad, it offers true versatility for audio enthusiasts who love depth, separation, and tone. Fully serviced and tested, this unit is plug-and-play ready.

It also comes with a beautiful custom hardwood case, included in the price. You can freely choose your preferred wood finish (dark walnut, golden oak, or other options). Let us know your choice at checkout to match your system’s look and feel.

Detail Specifications:

• Tuning range: FM, MW
• Power output: 40W/ch (stereo), 17W/ch into 4Ω (quadraphonic)
• Frequency response: 20Hz to 20kHz
• Total harmonic distortion: 0.5%
• Damping factor: 20
• Input sensitivity: 2.2mV (MM), 150mV (line)
• Signal to noise ratio: 93dB (MM)
• Speaker load impedance: 4Ω to 16Ω
• Dimensions: 440 x 137 x 365mm
• Weight: 15.5kg

Key Features

• Rare quad/stereo hybrid receiver – full 4-channel flexibility
• Iconic blue dial glow with Gyro-Touch tuning wheel
• Signature Marantz analog warmth and tone
• Dedicated phono input and detailed tone controls
• All-original knobs and switches, fully restored electronics
• Includes a free hardwood case – choose your preferred finish

What Makes It Special?

• One of the most flexible vintage receivers from Marantz’s golden age
• Delivers both immersive quadraphonic and classic stereo playback
• Smooth, tube-like tone ideal for vinyl setups
• Fully serviced for long-term reliability
• 1-year warranty for complete peace of mind

Suggested Pairings

• JBL L100 Century, JBL 4311, JBL 4412, JBL 4425 – classic synergy with punch and musicality
• KLIPSCH Heresy I/II, Klipsch Forte II, Klipsch KLF30 – efficient, open, and warm
• BOSE 901-5 / 901-6 (with EQ) – fantastic quadraphonic experience with expansive imaging
• YAMAHA NS-1000M – high precision and detail, great for vocals and acoustic recordings
• TANNOY Arden – smooth and full-range, perfect for jazz and classical
• PIONEER HPM-100 – bold vintage tone with excellent bass impact

🎯 Step into quadraphonic greatness with this beautifully restored Marantz 4240. Whether you’re building a vintage stereo or diving into 4-channel audio, this piece brings timeless sound and style — complete with a custom wood case of your choice. Act fast — these don’t stay in stock for long.

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Thinking of getting a speaker with a receiver or amplifier?

 Just message us BEFORE placing your order, and we’ll send you an instant $100 discount for your combo!

This offer is only available via direct message!

Let us know you’re building a complete sound system — we’re here to help every step of the way.

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Condition:

This receiver is in “Excellent” condition, displaying minor signs of use with a bright, clear dial. All knobs, feet, and the attached AM antenna and AC cord are present and intact. Although the manual is missing, it can be found online or we can provide a PDF upon request. Please inspect all photos thoroughly for the actual condition.

Service:

Upon inspection, the unit had scratchy controls, a dim dial, and some distortion in one channel. Therefore, it underwent servicing by our technician. This receiver used certain transistors in this model that are known to fail after 40 years, so all of these were replaced. This upgrade resolved the distortion issue. Additionally, several questionable capacitors were replaced.

Testing:

After servicing, the receiver was tested on our bench and performed excellently, delivering a powerful, warm, distortion-free signal characteristic of analog receivers. All inputs, outputs, and features were confirmed operational, and the tuner spins smoothly. Additional testing was conducted, and we can provide specific feature information upon request. This is a remarkable find for the vintage audiophile.

Condition Disclosure:

This item exhibits minor wear consistent with light use, as shown in the provided photos. The listing includes exactly what is pictured; no accessories, test equipment, or media are included.

Note:

The actual color of the product may sometimes differ slightly from the photos due to lighting conditions, temperature, and the device used.

Some angles in the photos may not fully reflect the product’s condition. Please read the description carefully and feel free to message us if you have any questions

Customer Service:

Once your item arrives, if you have questions about how your item functions or proper settings, please CONTACT US.

TRADE-IN PROGRAM

“If you have any vintage audios (receivers, speakers, cassette, reel to reel…) & want to upgrade with the serviced one, don’t hesitate to contact us for the best deal. You only need to pay for the difference between yours & mine….”